chanserv/chancmds/permban.c

   1 /* Automatically generated by refactor.pl.
   2  *
   3  *
   4  * CMDNAME: permban
   5  * CMDALIASES: ban
   6  * CMDLEVEL: QCMD_AUTHED
   7  * CMDARGS: 3
   8  * CMDDESC: Permanently bans a hostmask on a channel.
   9  * CMDFUNC: csc_dopermban
  10  * CMDPROTO: int csc_dopermban(void *source, int cargc, char **cargv);
  11  * CMDHELP: Usage: @UCOMMAND@ <channel> <hostmask> [<reason>]
  12  * CMDHELP: Permanently bans the provided hostmask on the channel.  If the ban is
  13  * CMDHELP: removed from the channel e.g. by a channel op or the BANTIMER feature, the
  14  * CMDHELP: ban will be reapplied if a matching user joins the channel.  Bans
  15  * CMDHELP: set with the @UCOMMAND@ command can be removed with BANCLEAR or BANDEL.  Any users
  16  * CMDHELP: matching the hostmask will be kicked from the channel.
  17  * CMDHELP: Where:
  18  * CMDHELP: channel  - channel to set a ban on
  19  * CMDHELP: hostmask - hostmask (nick!user@host) to ban.
  20  * CMDHELP: reason   - reason for the ban.  This will be used in kick messages when kicking
  21  * CMDHELP:            users matching the ban.  If this is not provided the generic message
  22  * CMDHELP:            \"Banned.\" will be used.
  23  * CMDHELP: @UCOMMAND@ requires master (+m) access on the named channel.
  24  */
  25
  26 #include "../chanserv.h"
  27 #include "../../nick/nick.h"
  28 #include "../../lib/flags.h"
  29 #include "../../lib/irc_string.h"
  30 #include "../../channel/channel.h"
  31 #include "../../parser/parser.h"
  32 #include "../../irc/irc.h"
  33 #include "../../localuser/localuserchannel.h"
  34 #include <string.h>
  35 #include <stdio.h>
  36
  37 int csc_dopermban(void *source, int cargc, char **cargv) {
  38   nick *sender=source;
  39   chanindex *cip;
  40   regban *rbp, *toreplace=NULL;
  41   regchan *rcp;
  42   reguser *rup=getreguserfromnick(sender);
  43   struct chanban *b;
  44   char banbuf[1024];
  45   unsigned int count = 0;
  46
  47   if (cargc<2) {
  48     chanservstdmessage(sender, QM_NOTENOUGHPARAMS, "permban");
  49     return CMD_ERROR;
  50   }
  51
  52   if (!(cip=cs_checkaccess(sender, cargv[0], CA_MASTERPRIV, NULL, "permban",0, 0)))
  53     return CMD_ERROR;
  54
  55   rcp=cip->exts[chanservext];
  56
  57   /* saves us having to do repeat a LOT more sanity checking *wink* *wink* */
  58   b=makeban(cargv[1]);
  59   snprintf(banbuf,sizeof(banbuf),"%s",bantostring(b));
  60   freechanban(b);
  61   b=makeban(banbuf);
  62
  63   for(rbp=rcp->bans;rbp;rbp=rbp->next) {
  64     count++;
  65     if(banequal(b,rbp->cbp)) { /* if they're equal and one is temporary we just replace it */
  66       if(rbp->expiry) {
  67         if(toreplace) { /* shouldn't happen */
  68           chanservsendmessage(sender, "Internal error, duplicate bans found on banlist.");
  69         } else {
  70           toreplace=rbp;
  71           continue;
  72         }
  73       } else {
  74         chanservstdmessage(sender, QM_PERMBANALREADYSET);
  75       }
  76     } else if(banoverlap(rbp->cbp,b)) { /* new ban is contained in an already existing one */
  77       chanservstdmessage(sender, QM_NEWBANALREADYBANNED, bantostring(rbp->cbp));
  78     }else if(banoverlap(b,rbp->cbp)) { /* existing ban is contained in new one */
  79       chanservstdmessage(sender, QM_NEWBANOVERLAPS, bantostring(rbp->cbp), banbuf);
  80     } else {
  81       continue;
  82     }
  83     freechanban(b);
  84     return CMD_ERROR;
  85   }
  86
  87   if(count >= MAXBANS) {
  88     /* HACK: oper founder channels have 20x the ban limit */
  89     reguser *founder=findreguserbyID(rcp->founder);
  90     if(!founder || !UHasOperPriv(founder) || count >= MAXBANS * 20) {
  91       freechanban(b);
  92       chanservstdmessage(sender, QM_TOOMANYBANS);
  93       return CMD_ERROR;
  94     }
  95   }
  96
  97   if(toreplace) {
  98     freechanban(b);
  99     chanservstdmessage(sender, QM_REPLACINGTEMPBAN);
 100
 101     rbp=toreplace;
 102     if(rbp->reason)
 103       freesstring(toreplace->reason);
 104   } else {
 105     rbp=getregban();
 106     rbp->ID=++lastbanID;
 107     rbp->cbp=b;
 108
 109     rbp->next=rcp->bans;
 110     rcp->bans=rbp;
 111   }
 112
 113   rbp->setby=rup->ID;
 114   rbp->expiry=0;
 115   if (cargc>2)
 116     rbp->reason=getsstring(cargv[2],200);
 117   else
 118     rbp->reason=NULL;
 119
 120   cs_setregban(cip, rbp);
 121   if(toreplace) {
 122     csdb_updateban(rcp, rbp);
 123   } else {
 124     csdb_createban(rcp, rbp);
 125   }
 126   chanservstdmessage(sender, QM_DONE);
 127   return CMD_OK;
 128 }